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Finding the Third Proportional to 6,816 and 15,929

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Solution

The third proportional to 6,816 and 15,929 is: 37,226.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,816 : 15,929 = 15,929 : x
  2. Step 2: Convert to fraction form
    6,816/15,929 = 15,929/x
  3. Step 3: Cross multiply
    6,816x = 15,929 × 15,929
  4. Step 4: Simplify right side
    6,816x = 253,733,041
  5. Step 5: Solve for x
    x = 253,733,041/6,816
  6. Step 6: Final answer
    x = 37,226.09

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Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.